California Transparency in Supply Chain Act(SB 657)

To Our Valued Customers,

The California Transparency in Supply Chain Act (SB 657) requires retail sellers and manufacturers doing business in California to disclose their efforts to eradicate slavery and human trafficking from their direct supply chain.

The vast majority of the products Omya sells are processed with stone that we quarry locally from our own facilities or are purchased from vendors located in the United States.

Omya Inc. and its US affiliates, including Omya Specialty Materials Inc., strive to conduct business in a sustainable manner including economic growth, ecological balance and social progress. Our efforts toward sustainable development are discussed in our Corporate Sustainability Policy. Further, our Corporate Code of Conduct sets forth our efforts and expectations in relation to the human rights of our workforce and our strict opposition to all forms of abusive or exploitative labor practices. Our Code of Conduct includes a clear reporting mechanism and the potential consequences of violations of the requirements of the Code of Conduct.

Upon hire, all new Omya Inc. employees receive a personal letter from our Global CEO setting the expectation that our employees should comply with our corporate policies to respect people, the environment, and all national and international laws. Additionally, all Omya Inc. employees with direct responsibility for supply chain receive supply chain transparency training, which includes modules on recognizing the signs of human trafficking and responding to suspected violations. 

Our supplier on-boarding process requires that suppliers agree to adhere to our Code of Conduct or their own, substantially similar code. Further, as part of our standard terms and conditions, we require our suppliers to comply with all applicable laws and regulations.

Our policies and values define the foundation upon which Omya Inc. conducts its business. Omya Inc. will never use forced labor in any of our operations and we will not conduct business with any third party that is known to engage in such practices. Any concerns regarding human trafficking and slavery in our supply chain will be promptly investigated; validated concerns will result in immediate action.

If you have any further questions, please feel free to contact David Barbieri, Director of Sustainability, at